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Finding the Fourth Proportional to 282,862.20, 424,283.70 and 72,502.20

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Solution

The fourth proportional to 282,862.20, 424,283.70 and 72,502.20 is: 108,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,862.20 : 424,283.70 = 72,502.20 : x
  2. Step 2: Convert to fraction form
    282,862.20/424,283.70 = 72,502.20/x
  3. Step 3: Cross multiply
    282,862.20x = 424,283.70 × 72,502.20
  4. Step 4: Simplify right side
    282,862.20x = 30,761,501,674.14
  5. Step 5: Solve for x
    x = 30,761,501,674.14/282,862.20
  6. Step 6: Final answer
    x = 108,750.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.